Replace all mailing lists with their contacts.
Upload large attachments to Plik and send the link by email
Copy email address to clipboard.
Check that number of non-BCC recipients does not exceed a parameter.
Upload large attachments to your Cloud and send the link by email
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.
Toggle Word Wrap Requires Restart
Toggle word wrapping and <PRE> element wrapping in the message composition and HTML display windows, respectively. Based on original version by Kaspar Brand.
changeQuote Requires Restart
It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->“Add-on Preferences -> changeQuote.
Uploads your large attachments to your Box instead of sending them by email.
Custom Sender Address and Reply Requires Restart
Select sender mail address based on the recipient and reply with the same address
AutoCopy_rebirth Requires Restart
Lightweight add-on that automatically copies any highlighted text to clipboard.
Use BCC Instead C Requires Restart
This is a version of 'Use BCC Instead' updated for Thunderbird 64 and above.
It prevents you accidentally sending an email to a large number of recipients without hiding their addresses from each other by using BCC.
TarotSignature Requires Restart
This version provides a custom button for the message composer.
You need to customize your toolbar of the message composer.
The signature is hard-coded into the source code.
The signature is NOT being inserted automatically on window-open.
Expands address book lists to recipients addresses in the compose window
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
stripImages Requires Restart
Remove all images from message with one click.
Places a "strip images" button on the toolbar of the message compose window.
Clicking the button will remove all images from the message.
This helps keep mailbox disk space down.
BorderColors D Requires Restart
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
EasyRight2Left Requires Restart
Change direction from Left to Right and Right to Left for Persian, Arabic, Hebrew etc. This Thunderbird extension is based on ComposeRTF available in https://addons.thunderbird.net/en-US/thunderbird/addon/composertf/
Asciidoctor for Thunderbird Requires Restart
Type some text in your mail's body, hit the asciidoctor button and transform your mail into a pretty html5 asciidoctor document. Font awesome and code highlighting are enabled.